E-Class (W211) 2003-2009

Air con fuse and relay location

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Old 07-12-2018, 09:39 AM
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W211 220cdi
Air con fuse and relay location

Could anybody tell me where to find the air con fuse and relay for a 2008 e220cdi. Can't find a diagram for location.
Old 07-13-2018, 02:49 PM
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1999 E300TD
Why do you need?
Old 07-13-2018, 03:05 PM
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Originally Posted by Plutoe
Why do you need?
air con is blowing warm air after I've recharged the gas.
Old 07-13-2018, 03:43 PM
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1922 Ford Model T / no OBD
I believe the relay is build into climatronic.
If the climatronic is on, that means the fuse is OK.
Do proper troubleshooting per link I gave you in other topic.
Old 07-13-2018, 08:33 PM
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Not to worry, there is no fuse to solve your issue, foget all the misinformation and put a set of gauges on the system----what is the high and low pressure reading---post!
Old 07-13-2018, 10:47 PM
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Originally Posted by Plutoe
Not to worry, there is no fuse to solve your issue, foget all the misinformation and put a set of gauges on the system----what is the high and low pressure reading---post!
don't have a set of gauges.
Old 07-13-2018, 10:48 PM
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Originally Posted by Johnnyw211
don't have a set of gauges.
Is it possible there is another recharge port or valve to charge?
Old 07-13-2018, 10:51 PM
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YES - You can't believe what was that. In UK we had mobile aircon specialist

who has connected his "equipment" and said that there is too much pressure in air con system - so we were thinking that we have full system. After 2 attempts of resetting computer the light was still back. We went to another aircon specialist in POland and he said that the idiot in UK almost fuc... our aircon system because in Mercedes there is some special way how do u measure pressure - at the first sight u can see that you have full pressure but there are 2 zones and you have to measure them separately - so he did check only 1 zone - the 2nd zone was empty and computer is preventing the whole thing against collapse by switching it off. He said if you force and reset computer 2 -3 times it will allow the system to work on low or no pressure your pump can be gone.
We have filled up the second zone and the system is on and working.
Old 07-13-2018, 10:54 PM
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Originally Posted by Johnnyw211
YES - You can't believe what was that. In UK we had mobile aircon specialist

who has connected his "equipment" and said that there is too much pressure in air con system - so we were thinking that we have full system. After 2 attempts of resetting computer the light was still back. We went to another aircon specialist in POland and he said that the idiot in UK almost fuc... our aircon system because in Mercedes there is some special way how do u measure pressure - at the first sight u can see that you have full pressure but there are 2 zones and you have to measure them separately - so he did check only 1 zone - the 2nd zone was empty and computer is preventing the whole thing against collapse by switching it off. He said if you force and reset computer 2 -3 times it will allow the system to work on low or no pressure your pump can be gone.
We have filled up the second zone and the system is on and working.
that was from an old post but what does it mean?
Old 07-13-2018, 10:55 PM
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Dear Johnny be Good, you don't understand the system and have no tools.
My suggestion, take the family out to dinner and the next morning drive the car to an AC shop who has the tools and experience to tell you what is faulty. Then you can take the next couple of months fixing the car
Old 07-16-2018, 10:11 AM
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2006 E320 CDI
This does not make sense to me”filled up the second zone”, zones are controlled by dampers, not by routing refrigerant.
Old 07-16-2018, 06:05 PM
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1922 Ford Model T / no OBD
I have a feeling that this was a case where "3 ignorants meet together"
OP doesn't know much about AC and is not willing to learn.
Than computerized AC is not that common, so finding a proffesional who knows how to deal with it is not that easy (as sample above shows).
Too bad as those system can be fully troubleshot in just seconds by stroking few keys. .... if you ignore clowns advise.

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